Lubrication of twisting spindles used in yarn and like winding machinery



Nov. 16, 1937. w. l. TAYLOR ET A1.

LUBRICA'IION OF TWISTING SPINDLES USED IN YARN AND LIKE WINDING MACHINERY Filed June 18, 1936 1 IF I v m '16- 5: :5 QDMIM AYLOR W4. g woonRv /NVENTO A77'ORNEYS Patented Nov. 16, 1937 LUBRICATION OF TWISTING SPINDLES USED IN YARN AND LIKE WINDING MA- CHIN ERY William Ivan Taylor and Alfred Herbert Woodrufl", Spondon, near Derby, England, assignors to Celanese Corporation of America, a corporation of Delaware Application June 18, 1936, Serial No. 85,950 In Great Britain July 2, 1935 6 Claims.

This invention relates to twisting spindles used in yarn and like winding machinery, the object of the invention being to provide a considerably improved life of such spindles, especially when operating at speeds much in excess of those commonly in use.

It has been found that when normal types of high speed twisting spindle, and especially those employed in crepe twisting, are driven at speeds in excess of 10,000 revolutions per minute, the spindles rapidly become hot, and if wear of the spindle bearing is not such as to render running impossible in the space of a few minutes, at any rate it is almost invariably so severe as to render it uneconomic to run the spindles at such speeds.

A twisting spindle according to the invention is mounted in a bolster or hearing carried by a member within which is a chamber through which cooling medium, e. g. a liquid medium such as water or oil, can be circulated. Thus, the spindle bolster may pass through a perforated tubular support lying beneath a shoulder on the bolster and mounted within a circulating chamber in such a manner as to provide clearance between its inner wall and the spindle bolster so that the cooling medium can readily penetrate to the surface of the bolster. The bolster passes through the bottom of the chamber, leakage of the cooling medium at this point being prevented by means of packing inserted between the underside of the chamber and the nut by which the bolster is secured in place.

The circulation of the cooling medium round the spindle bearing maintains the lubricating oil in the bearing at a low temperature and thus reduces the rate of wear to a reasonable figure and enables runs at high speeds, for example of the order of 17,500 to 20,000 revolutions per minute or more, to be continued over considerable periods. A gaseous cooling medium, e. g. air, may be employed, if desired. Whether liquid or gaseous, the cooling medium is supplied to the spindle at a sufliciently low temperature to bring about the required cooling action.

Where, as is usual, a plurality of spindles are mounted in a row or in a number of rows in the twisting machine, the spindles may conveniently be mounted on a rail suitably hollowed out to provide for the circulation of the cooling medium past and round each spindle. Thus, the rail may be in the form of a trough having suitable connections at its ends for the supply and discharge of cooling liquid and provided with a cover for the exclusion of dirt or lint. A tank or water main may supply the liquid, or a pump or other circulating means may be provided, the several rails of a single machine being conveniently connected in parallel.

The invention will now be described in greater detail with reference to the accompanying drawing in which:

Fig. 1 is a transverse vertical section of the spindle;

Fig. 2 is a longitudinal view, partly in section, of a spindle rail containing six spindle mountings;

Fig. 3 is a cross-section of a detail of Fig. 1; and

Figs. 4 and 5 are diagrammatic front and end elevations respectively of a two bank twisting machine embodying the spindle mountings and rails of Figs. 1 and 2.

Referrings to Figs. 1 and 2, a spindle rail I is formed generally of channel section, its bottom being bored at equally spaced points 2 to receive six spindle mountings. Between the mountings, Walls 3 divide the channel into compartments. An inlet 4 is provided at one end of the spindle rail and near the other end an adjustable overflow pipe 5 provides an outlet for cooling liquid introduced at 4.

Each spindle mounting comprises a bolster 6 passing through a bore 2 in the bottom of the channel I and held in place by a nut 1, a packing washer 44 preventing leakage. A shoulder 8 on the bolster 6 bears on a cylindrical support 9 providing a cavity Ill immediately surrounding the bolster 6. The support 9 is perforated to provide a communication between the cavity l and the interior of the channel I.

The bolster 6 is bored to receive a tubular member ll, screwed at l2, and provided with a squared portion I3. The sleeve I 4 sits firmly in a recess l at the bottom of the member II and extends upwardly to the part indicated at IS. The tapered portion I! of the spindle I8 is rotatably mounted in the sleeve l4, clearance being provided at l 9.

Oil is fed through holes into the recess 2| surrounding the sleeve l4 in the tubular member I l and the sleeve is gashed, as shown at 22 in Fig. 3 to admit oil into the recess IS. A helical groove 23 enables the spindle to lift the oil and provide for lubrication of the whole length of the tapered portion ll of the spindle. In the top portion iii of the sleeve l4, i. e. at the point where wear is most likely to become evident, a renewable phosphor bronze liner 24 is provided.

The top- 25 of the bolster 6 is provided with a slot 26 leading to two oppositely disposed slots 21 into which fits a peg 28 carried by the sleeve ll. This arrangement prevents the sleeve from lifting out of position by the pull of the belt, whatever the direction of rotation of the spindle. The spindle is driven by means of a whorl 29 pressed onto the spindle and secured by screws at 30. The lower end of the whorl surrounds the upper end 25 of the bolster 6.

An ample supply of lubricant is provided by the recess 2|, and, as stated above, the lubricant is circulated by the rotation of the spindle over the length of the tapered portion I1. Any surplus oil carried above the sleevel4 runs back outside the sleeve and through the holes 20 to the oil well in the member ll.

During the running of the spindle, water is continuously circulated through the channel rail I, entering at 4, passing over the walls 3, or through holes 43 in the walls, and out oi the over-flow pipe 5. In its circulation, .the water passes through the perforated support 9 to the space in, surrounding each bolster 6. The oil circulating in the sleeve i4 is thus kept cool.

Fig. 4 shows two banks 3| 32 builtup of the channel rails l the spindles [8 being driven from the centre 33 of the machine by any suitable belt mechanism (not shown). The rails I are carried by a frame ll of suflicient rigidity to reduce as far as possible the tendency of the belt and associated mechanism to set up vibration. Cooling water is supplied from the pipe branching into leftand right-hand pipes 35, cocks 36 being provided for the control of the quantity of water. Down pipes I36 supply the transverse pipes 3! controlled by cocks 38 and connecting with the inlets 4 of the several rails I.

The over-flow pipes discharge into funnels 39 leading to a drain 40 from which the water may be run to waste, or, if desired, returned after the necessary filtering and cooling to the pipe 34. Covers 42 may be provided to prevent the ingress of fluif, etc. into the channels I.

Having described our invention, what we desire to secure by Letters Patent is:-

1. Yarn or like twisting device comprising a channel rail, a spindle bolster, a shoulder on the bolster, a perforated tubular member surrounding and spaced from the bolster beneath the shoulder to provide a support for the bolster in the chan-- nel, a recess for spindle lubricant within the bolster, and means in the rail for providing for the passage or cooling medium into and out of the ing the spindle, said bolster containinga recess 7 for spindle lubricant, a member by which the bolster is carried, a shoulder on the bolster, a perforated tubular spacer engaging with said shoulder so as to provide a support for the bolster in said member, and enclosing an annular space around the bolster, a chamber within the bolstercarrying member, and means providing for the passage of cooling medium into and out of the chamber.

4. Yarn or like twisting device comprising a channel rail, a spindle bolster protruding through and secured to the base of said channel rail, a recess for spindle lubricant within the bolster, and means in the rail for providing for the passage of cooling medium into and out of the channel.

5. Yarn or like twisting device comprising a channel rail, 2. spindle bolster protruding through and secured to the base of said channel rail, a recess for spindle lubricant within the bolster, means in the rail for providing for the passage of cooling medium into and out of the channel and a cover on said channel rail adapted to prevent the ingress of dirt into the cooling medium.

6. Yarn or like twisting device comprising a channel rail, a plurality of spindle bolsters protruding through and secured to the channel rail at spaced intervals, a recess for spindle lubricant within each bolster, and means at the two ends of the rail providing respectively for the passage of cooling medium into and out of the channel, and

thereby for a flow of cooling medium past each bolster in turn.

WILLIAM IVAN LIAYLOR. ALFRED HERBERT WOODRUFF. 

